Although I have not used it yet after purchase, cost performance is the highest at the price of 1/3 of genuine purchase. Those who are thinking about restoring old cars, bikes, etc., genuine is expensive (ww even though it is the same item)

I thought that the genuine parts became a waste version, and I was thinking whether to process the grooves of the retaining ring, but since it was sold by Monotarou, because the standard product was sold without processing, I immediately purchased it.